code: def test_exp_and_coordinates_tangent(self, tangent_vec, base_point):
      end_point = self.space.metric.exp(tangent_vec, base_point)
      self.assertAllClose(base_point[0], end_point[0])
  
file_path: geomstats/tests/tests_geomstats/test_geometry/test_poincare_half_space.py
imports: import random
  import pytest
  from geomstats.geometry.poincare_half_space import PoincareHalfSpace, PoincareHalfSpaceMetric
  from geomstats.test.parametrizers import DataBasedParametrizer
  from geomstats.test_cases.geometry.poincare_half_space import PoincareHalfSpaceTestCase
  from geomstats.test_cases.geometry.riemannian_metric import RiemannianMetricTestCase
  from .data.poincare_half_space import PoincareHalfSpace2TestData, PoincareHalfSpaceMetric2TestData, PoincareHalfSpaceMetricTestData, PoincareHalfSpaceTestData
label_desc: Use image node_id 1 for calling the TestPoincareHalfSpaceMetric2 obj's underlying member method code with example usage: obj.test_exp_and_coordinates_tangent(tangent_vec, base_point) without return types